[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP AUTOMATIC LEVELLING SYSTEM<Vehicles with headlamp auto levelling system><Vehicles with headlamp auto levelling system> > DIAGNOSIS CODE PROCEDURES > Code No. B2516 Rear height sensor signal error
Code No. B2516 Rear height sensor signal
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
 
 
DIAGNOSTIC FUNCTION
If a trouble occurs in rear height sensor, code No. B2516 is set.
 
 
JUDGEMENT CRITERIA
The ETACS-ECU detects the error of the signal voltage from the rear height sensor (less than 0.7 V, or 4.2 V or more) or 1 second or longer continuously.
 
 
PROBABLE CAUSES
  • Malfunction of the rear height sensor
  • Malfunction of the rear height sensor installation
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE diagnosis code
Check if diagnosis code No. B2514 is set.
Is diagnosis code No. B2514 set?
Perform the troubleshooting of the diagnosis code No. B2514.
Go to Step 2.
 
STEP 2. Rear height sensor installation status check
Check that the rear height sensor is installed properly.
Is the check result normal?
Go to Step 3.
Install the rear height sensor properly.
 
STEP 3. Voltage measurement at rear height sensor connector (SBR terminal).
(1) Disconnect the connector, and measure at the wiring harness-side connector.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the resistance between the rear height sensor connector (SBR terminal) and body earth.
OK: 5 V
Is the check result normal?
Go to Step 5.
Go to Step 4.
 
STEP 4. Check of open circuit in SBR line between rear height sensor connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. Resistance measurement at rear height sensor connector (SGR terminal).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the rear height sensor connector (SGR terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 7.
Go to Step 6.
 
STEP 6. Check of open circuit in SGR line between rear height sensor connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 7.
Repair the connector(s) or wiring harness.
 
STEP 7. Check of short to power supply, short to earth, and open circuit in SHR line between rear height sensor connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 8.
Repair the connector(s) or wiring harness.
 
STEP 8. rear height sensor check
Check that the rear height sensor is normal (Refer to ).
Is the check result normal?
Go to Step 9.
Replace the rear height sensor.
 
STEP 9 M.U.T.-IIISE data list
Check the rear height sensor for the signal voltage.
 
Item No.Item nameNormal condition
202Rear height sensor signal voltage0.7 V - 4.1 V
OK: Normal condition is displayed.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to cope with Intermittent Malfunctions ).
Replace the ETACS-ECU.